Adjustable stovepipe-joint.



' No. 839,148. 4 PATENTEDDEO. 25; 1906.

, 0. J. HOLUB. ADJUSTABLBSTOVEPIPE JOINT.

APPLICATION FILED NOV. 11. 1905.

l @vezzm aa ZeaJEOZ$$ UNITED ADJUSTABLE STOVEPIPE-JQINT. I

v Specification of Letters Patent.

Patented nee. 25, 1906.

. Applieationfiled Noveniberllj1905. se ia nazsases.

T a/ZZ whom it rmty concern;

, cago, in the county of Cook and State of Illi Joints, of which thefollowing is a specifica-g tion.

My present invention relates to improvements in adjustablestovepipe-joints, and has special reference to the provision of a jointwhereby a stove can be quickly and conveniently connected with the fluewithout the necessity of cutting a section of stovepiping to secure theproper length, which is now almost universally necessary.

At present stovepipe can only be purchased upon the market in sectionsof'a certain length. It very rarely happens that the distance betweenthe stove and the flue-hole in the wall can be made up of these sectionswithout cutting one of them. To cut a section of stovepiping to make upa stovepipe of the desired length requires a tinner provided withthetools of his trade. With my adjustable stovepipe-joint any one canadjust and secure the joint and make up a stovepipe of any desiredlength without any tools whatever.

It has been found by the dealers to be impracticable to carryStovepipe-sections of varying lengths, becauseof the immense diversityof lengths which would be required. My adjustable stovepipe-joint can bemanufactured in a factory in large numbers at a greatly-reduced cost andsupplied to a consumer for less than he could have an ordinary sectioncut to the proper length.

My invention consists of a new and improved construction and combinationof parts, as will presently appear.

In the accompanying drawings, Figure 1 is aiview of the two members ofmy device in a position to be adjusted with a portion of one memberbroken away to show the looking tongue or tang. Fig. 2 is a view of thetwo members of my device in a locked position with a portion of onemember broken away, showing the locking tongue or tang in engagementwith the locking means upon the other member. Fig. 3 is a sectional viewtaken through the line X X, Fig. 2. Fig. 4 is a sectional view the sameas Fig. 3,

. except that thelocking means are reversed .and the interior membercarries the locking tongue or tang. Fig. 5 is a sectional view member.nois, have invented certain new and useful Improvements in AdjustableStovepipe the same as Fig. 3, except that the function of the lockingtongue or tang is secured by a depressed segment in the end of theexterior In the drawings the numeral 1 represents one member of mydevice, which is an ordinary piece of stovepipe. The numeral2 representsthe other member, which is also a piece of stovepipe, but with a smallerdiameter than member 1, so that member 2 can be easily pressed into ordrawn out of member 1. The ordinary stovepipe which is sold upon themarket consists of a sheet or blank of metal the lateral edges of whichare bent into reverse hooks assembled and pressed, or what istechincally known as seamed,

closely together. 'This construction pro-' duces four thicknesses ofmetal at the seam,

with the incident thickening and strengthening of the pipeat thatportion. I locate the lock or means for maintaining my joint at thedesired length upon these seams.

At one end and upon the inner surface of the member 1, I attach thetongue or tang 3 by means of the rivet 4E. The tongue or tang 3 is bentso as to spring out slightly from the surface of the member 1, while atthe same time being easily depressed to contact with the surface for thepurpose of inserting the member 2. The outer thickness of the seam ofthe member 2 I slit or cut transversely and pry up or distend the metalat one side of said slits or cuts to form the shoulders or pockets 5 5,as clearly shown in Figs. 1, 2, 3, and 5. To adjust my joint, insertmember 2 into member 1, twist the res ective members to a position, asshown in ig. 1, where the locking devices carried by the respectivemembers are not in line, press member 2 into member 1 until the desiredlength of section is secured, rotate the respective members until thelocking, devices'carried by the respective members are in line, as shownin Fig. 2, when the'tongue or tang 3 will engage a shoulder or pocket 5and lock the joint against compression- Fig. 4 illustrates amodification of my in vention in which the interior of member 1 is cutand shouldered, and member 2 carries upon its outer surface the tongueor tang 3. Fig. 5 illustrates another modification of my inventionwherein the tongue or tang 3 is dispensed with and a segment of member 1depressed at 6 to engage the shoulder 5.

From the foregoing description, taken in connection with the drawings,it is evident that Iprovide an extremely simple stovepipe I consistingof two telescoping sections of joint or section which is susceptible toadjustment to various lengths and which can be readily manipulatedwithout the use of tools or other means except the hands.

What I claim as new, and desire to secure by Letters Patent, is

1. An adjustable stovepipe-j oint consisting of two sections ofstovepiping, one of said sections telescoping into the other, thesurface layer of metal upon the seam of one of said sections being cutat intervals, the metal at one side of said cuts being raised to providepockets and means carried by the other of said sections to engage thedesired one of said pockets.

2. An adjustable sheet-metal-pipe joint sheet-metal piping the lateraljoint or seam of said sections being formed by the engagement ofreversed bends in the metal of the sections, the surface thickness ofthe seam upon one of said sections being transversely cut and the metalat one side of said out being raised to form a pocket and means carriedby the other of said sections to engage said pocket.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES J. HOLUB.

Witnesses:

SAMUEL B. FALK, BENJ. T. RooDHoUsE.

